SOLUTION: please help me solve this equation: 15y2 + 45y - 9 = 4y - 5y2
Algebra
->
Quadratic Equations and Parabolas
->
Quadratic Equation Customizable Word Problems
-> SOLUTION: please help me solve this equation: 15y2 + 45y - 9 = 4y - 5y2
Log On
Quadratics: solvers
Quadratics
Practice!
Practice
Answers archive
Answers
Lessons
Lessons
Word Problems
Word
In Depth
In
Click here to see ALL problems on Quadratic Equations
Question 275197
:
please help me solve this equation: 15y2 + 45y - 9 = 4y - 5y2
Answer by
checkley77(12844)
(
Show Source
):
You can
put this solution on YOUR website!
15y2 + 45y - 9 = 4y - 5y2
15Y^2+5Y^2+45Y-4Y-9=0
20Y^2+41Y-9=0
(5Y-1)(4Y+9)=0
5Y-1=0
5Y=1
Y=1/5
Y=0.2 ANS.
4Y+9=0
4Y=-9
Y=-9/4
Y=-2.25 ANS.